Compression unit



June 11, 1935. P. A. CELANDER 2,004,889

coMPREssIoN UNIT Filed April 25, 1.934

`- y' INVENTOR.

\ PML/P LcEL/VDER A TTORNE Y.

Patented June 11, 1935 UNITED STATES PATENT OFFICE Williams Oil-O-MatcHeating Corporation,

Bloomington, Ill., a corporation of Illinois Application April 25, 1934,Serial No. 722,294

1 Claim.

This invention relates to improvements in refrigeration and moreparticularly to a refrigeration machine of the compressor type combinedwith an internal combustion engine for operating the compressor.

Commercial refrigeration machines of the compression type in which thecompressor is operated by an electric motor have been marketed -for sometime. Such units depend upon the availability of commercial electricpower such as employed in commercial lighting systems found in allcommunities of over a certain population and are not available to thefarmer, rancher, miner or others living in sparsely populated areas andat a distance from a source of commercial electricity.

In order to provide a refrigeration unit independent of commercialelectricity or a source of power, an internal combustion engine iscombined in the unit to provide the necessary power. It is one ofthe'objects of this invention to provide such a unit with means allowingthe cranking of the internal combustion engine independently of thecompressor and after. the engine is operating to connect a drivingpulley thereof to a driving pulley of the compressor to operate therefrigeration device.

With the wide use of the internal combustion engine and the widedistribution' of fuel therefor, the advantages of such a refrigerationunit are obvious.

With these and other objects in view, reference is made to theaccompanying sheet of drawing which illustrates a preferred form of thisinvention with the understanding that minor changes may be made withoutdeparting from the scope thereof.

In the drawing: f

Figure 1 is a view partly in elevation and partly in vertical section ofa refrigeration unit constructed in accordance with this invention.

Figure 2 is an enlarged detail view in section taken on the line 2-2,Figure l, with the internal combustion engine removed.

Figure 3 is a view in section taken on the line 3-3, Figure 2, lookingin the direction of the arrows.

A compressor C of a commercial refrigeration machine and a commercialinternal combustion engine E are mounted upon a base I supported on legs2. The compressor C is immovably mounted upon one end of the base I andis provided with a driving pulley 3 ymounted upon an exterior end of thecrank shaft, not shown, of the compressor. The internal combustionengine E is secured upon a base 4 mount ed to reciprocate upon a track 5upon the other end of the base I and is provided'with a driving pulley 6upon the same side as the compressor pulley. A pulley belt 1 is arrangedto operatively connect the pulleys 3 and 6. A crank 8 is provided uponan exterior projection of the engine crank shaft opposite the pulley 6for initiating operation of the engine. l

The engine E is mounted upon base 4 in any desired manner, such as beingclamped upon the pads 9 thereon. The base 4 is mounted to nal combustionengine E independently of the` compressor C, a cam I2 is mounted uponl abracket I3 positioned in front of the base 4 when in normal position. Itis preferable to adjustably secure the bracket I3 by studs I4 threadedinto mounting blocks I5 secured to the interior of the base I, as shownin Figure l. The cam I2 includes a circular portion mountedeccentrically upon a pivot I6 upon the bracket I3 and is` provided withan operating handle I1. The cam I2 is mounted in the axis of thereciprocable base 4 and when in this position, shown in -full lines inFigure 2, will be out of contact therewith. Upon rotation of the handle,as showny in dotted lines in said figure, the cam surface will engagethe outer end of the base 4 and move it in the direction of thecompressor C against the tension of the springs I0. The movement of thebase 4 carries the engine E and engine pulley B in the direction of thecompressor, releasing the 'tension on the belt lI, as shown in dottedlines in Figure 1. y

What I claim is:

The combination with a compressor mounted upon a base of an internalcombustion engine mounted to travel to and from the compressor upon thesame base having a belt drive for the compressor, coil springs betweenthe compressor and engine anchored at the ends adjacent the compressorto the base and pressing upon the engine to maintain the belt tight, anadjustable bracket mounted on the engine end of the base and extendingtherebeyond, and a handle terminating in a flat circular endeccentricallyj pivoted upon the bracket to cause the cam surfacethereofto engage the engine and upon rotation of the handle to move the engineto` compress the springs and loosen the belt to lessen the load instarting the engine.

` PHILIP A. CELANDER.

